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Triss [41]
3 years ago
9

The atmosphere surrounding Earth helps to maintain the various climates found around the world and keeps Earth from becoming ext

remely cold all over Which of the following best explains how the atmosphere helps to keep Earth insulated and warm?
The atmosphere creates heat as Earth moves through space helping to warm the climate
The atmosphere traps the heat energy generated by Earth's core helping to maintain the climate
The atmosphere traps heat energy from the Sun and energy radiated from Earth's surface helping to maintain Earth's climate
The atmosphere transfers heat from its outer layers that are closest to the sun to the cooler layers near Earth's surface, helping to warm the climate
Chemistry
1 answer:
riadik2000 [5.3K]3 years ago
4 0

Answer:

The atmosphere traps heat energy from the Sun and energy radiated from Earth's surface helping to maintain Earth's climate

Explanation:

Earth's atmosphere keeps much of the Sun's energy from escaping into space. This process, called the greenhouse effect, keeps the planet warm enough for life to exist. The atmosphere allows about half of the Sun's heat energy (50%) to reach Earth's surface.

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A mileage test is conducted for a new car model. Thirty randomly selected cars are driven for a month and the mileage is measure
Leni [432]

Answer:  (27.81,\ 29.39)

Explanation:

Given : Sample size : n= 30 , it means it is a large sample (n≥ 30), so we use z-test .

Significance level : \alpha: 1-0.95=0.05

Critical value: z_{\alpha/2}=1.96

Sample mean : \overline{x}=28.6

Standard deviation : \sigma=2.2

The formula to find the confidence interval is given by :-

\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

i.e. 28.6\pm (1.96)\dfrac{2.2}{\sqrt{30}}

i.e. 28.6\pm 0.787259889321

\approx28.6\pm 0.79=(28.6-0.79,28.6+0.79)=(27.81,\ 29.39)

Hence, the 95% confidence interval for the mean mpg in the entire population of that car model = (27.81,\ 29.39)

4 0
3 years ago
Which of the following are considered pure substances?
Helen [10]
B.Elements

Explanation: they cannot be separated
8 0
3 years ago
A store employee first inflated a balloon with 1.53 moles of helium gas. When the customer said it needed to have a volume of 75
Leviafan [203]
The first volume milliliters are 328 mm
3 0
3 years ago
Look at the following reaction. Select the option that best applies to the reaction.
tester [92]

Answer:

Two moles of KClO3 decompose to form 5 moles of product.

5 0
3 years ago
Read 2 more answers
PF3Br2 is a nonpolar molecule. Based on this information, determine the F−P−F bond angle, the Br−P−Br bond angle, and the F−P−Br
inna [77]

Answer:

120,180,90.

Explanation:

PF3Br2 has a trigonal bypiramidal geometry. The three atoms of F will be arranged around the P atom in the same plane and each F-P-F bond will have an angle of 120 degrees. There will be only one Br atom above and beneath the P atom so the bond angle for Br-P-Br will be 180 degrees. Finally, the F−P−Br bond angle will be at 90 degrees.

8 0
3 years ago
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